一种智能光网络中的亚毫秒光开关阵列

设计研制了一种亚毫秒级微机械光开关阵列.该阵列驱动电压为5V,开关时间小于750μs, 插入损耗在0.6 dB～0.8 dB之间,串扰<－70 dB.具有结构简单、成本低廉、可大规模集成的优点,能很好地解决智能光网络节点连接设备OADM快速信号转换和串扰问题.详细介绍了该光开关阵列实现原理,报告了器件性能测试,并应用FEA软件分析了开关单元中磁场和开关驱动过程.

Sub-millisecond Optical Switch Array for ION

A sub-millisecond optical switch operation was reported for an array of 1x2 switches for intelligent optical network (ION). By utilizing a micromachined wedge-shaped double side micro-mirror to implement an input optical beam path change, the design achieved a high level integration of multiple switches on a single substrate,and significantly reduced mirror traveling distance or angle for switch operation and thus shortened the switch time. An array of four 1×2 switches was fabricated on an aluminum substrate with an overall size of only 60×36×7 mm3 . Performance of the switch array prototype was reported, featuring a fast switch time of less than 750 μs and extremely low cross-talk <-70 dB with an insertion loss of between 0.6 and 0.8 dB. An analysis on switch time was conducted using a commercial finite element analysis software package ANSYS and a good agreement was obtained between the measured and calculated switch time.